Bump spm-calculator to >=0.2.1 for Betson equivalence scale fix#771

MaxGhenis merged 1 commit intomainPolicyEngine/policyengine-us-data:mainfrom

migrate-utils-spm-to-spm-calculatorPolicyEngine/policyengine-us-data:migrate-utils-spm-to-spm-calculatorCopy head branch name to clipboard